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Zur Kristallstruktur von CaFeF 5
Author(s) -
Graulich J.,
Massa W.,
Babel D.
Publication year - 2003
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200390059
Subject(s) - octahedron , crystallography , crystal structure , materials science , group (periodic table) , chemistry , organic chemistry
On the Crystal Structure of CaFeF 5 Single crystals of CaFeF 5 were obtained by heating a mixture of the component fluorides at 860°C for 12 d (a = 549.2(1), b = 1007.6(2), c = 759.9(2) pm, β = 110.02(3)°; space group P2 1 /c, Z = 4). The X‐ray structure redetermination of a twinned specimen confirmed the chain structure of octahedra sharing trans corners already known. But the anomalies reported earlier were removed and less distorted [FeF 6 ] octahedra and [CaF 7 ] pentagonal bipyramids were found, the distances of which are split within the usual range around mean values of Fe—F: 192.4 and Ca—F: 233.1 pm.